Processing method of clamshell type thin-walled part

Abstract

The invention discloses a processing method of a clamshell type thin-walled part. The processing method of the clamshell type thin-walled part comprises the following steps: step one, processing a process handle with a part blank on a substrate and forming a stress releasing notch in the process handle, in which the part blank has a bridge section which crosses over the stress releasing notch; step two, positioning and clamping the process handle on a tool, processing a convex surface, a concave surface and a mounting boss on the part blank to form a finished part and enabling the process handle to be integrally connected to the periphery of the finished part all the time; and step three, removing the process handle around the finished part to obtain a complete finished part. Through the processing method of the clamshell type thin-walled part, the stress releasing notch is formed in the process handle so as to release the processing stress applied to the part blank and the process handle in the cutting processing process, so that the influence of the processing stress on the size accuracy and the shape accuracy in the part forming process is avoided; the influence of the processing stress on the size accuracy of the part forming process is reduced; the processing accuracy of the finished part is improved.

Description

technical field [0001] The invention relates to a processing method of a clamshell type thin-walled part. Background technique [0002] At present, with the continuous improvement of manufacturing capacity, the design of mechanical parts is also developing in the direction of complexity, light weight and precision. The light weight of precision and complex parts will inevitably lead to poor rigidity of parts and easy processing for processing and manufacturing. Deformation, no clamping position and other technical problems that are difficult to solve in the field of manufacturing technology. Clamshell thin-walled parts are complex thin-walled parts encountered in production. The characteristics of this part are: ① thin-walled, with a wall thickness between 0.5mm and 1mm; There is no clamping and positioning area; ③The clamshell-type thin-walled parts are tightly fastened together by the upper and lower clamshells through several mounting bosses. The fastening surface is com...

AI Technical Summary

Problems solved by technology

However, due to the insufficient local rigidity of the thin wall of such thin-walled shell-shaped parts, the cutting force, cutting heat, and clamping force of the machine tool fixture system will cause local deformation of the part during processing, which will cause the local size of the part to exceed Poor and out-of-tolerance shapes, resulting in overall bending and twisting after cutting and elongation and shortening during part placement, etc.

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